@article{ref1,
title="The theory of the social threshold: the social aspect of accident causation",
journal="Sociological review, The",
year="1950",
author="Paterson, T. T.",
volume="a42",
number="1",
pages="53-68",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0038-0261",
doi="10.1111/j.1467-954X.1950.tb02461.x",
url="http://dx.doi.org/10.1111/j.1467-954X.1950.tb02461.x"
}